Finding the Fourth Proportional to 71,560.14, 107,347.56 and 18,969.62
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Solution
The fourth proportional to 71,560.14, 107,347.56 and 18,969.62 is: 28,456.38
Step by Step Solution
- Step 1: Write the proportion equation
71,560.14 : 107,347.56 = 18,969.62 : x - Step 2: Convert to fraction form
71,560.14/107,347.56 = 18,969.62/x - Step 3: Cross multiply
71,560.14x = 107,347.56 × 18,969.62 - Step 4: Simplify right side
71,560.14x = 2,036,342,421.13 - Step 5: Solve for x
x = 2,036,342,421.13/71,560.14 - Step 6: Final answer
x = 28,456.38
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.